Process for destroying pests comprising the application of the dibutyl acetal of aminoacetaldehyde to the pest



Patented Feb. 12, 1952 UNITED STATES PATENT OFFICE PROCESS FOR DESTROYING PESTS COM- PRISING THE APPLICATION OF THE DI- BUTYL HYDE TO THE PEST ACETAL OF AMINOACETALDE- Emily M. Owen, Easton, Pa., assignor to General Aniline & Film Corporation, New York, N. Y., a corporation of Delaware No Drawing. Application November 19, 1948, Serial No. 61,140

1 Claim.

R-CHr-CH wherein R is hydrogen, NHz, C1, or C013 and R1 is an ethyl or'butyl group and R2 is a butyl, decyl or dodecyl group.

Examples of some of these compounds include the following:

Table The compounds of the present invention have been found useful both for the destruction and inhibition of growth of soft-bodied insects, bacteria, fungi, worm pests such as nematodes and wireworms etc. and, for convenience, the material is herein designated as a biocide. The following examples illustrate the use of certain of the compounds on bacteria, spores and aphids.

Example 1 Example 2 Using the procedure described in Example 1, it was found that a 100092 solution of the tetrabutyl acetal of iminodiacetaldehyde in /1o% acetone completely inhibited the germination of Sclerotinia fructz'cola spores.

Example 3 When a 0.1% solution of dibutyl acetal of aminoacetaldehyde in 10% acetone was tested by the agar cup plate method as described in U. S. D. A., Circular No. 193, an 8.0 mm. zone of inhibition was shown against Escherichia coli and a 1.5 mm. zone of inhibition against Staphylococcus aureus.

Example 4 A solution containing 0.5% by weight of the dibutyl acetal of 5, 8,fi-trichloropropionaldehyde in 50% acetone was sprayed on a potted nasturtium plant infested with Aphis rumicis. After 24 hours a mortality of of .the aphids was observed.

Example 5 A solution of 0.125% by weight of the dibutyl acetal of aminoacetaldehyde sprayed as in the above example gave 83% mortality of Aphis rumicls.

The acetals of the present invention are preferably used in solution in an organic solvent therefore which is also miscible in water such as ethyl alcohol and acetone. However, the compounds may be employed with inert diluents and with carriers, in solution with various solvents, emulsifying agents, in water dispersions, etc. They may be applied as dusts, sprays, washes, aerosols, dipping solutions, etc.

I claim:

A process for destroying pests which comprises applying thereto dibutyl acetal of aminoacetaldehyde.

EMILY M. OWEN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS OTHER REFERENCES Roarke et al.: U. S. D. A. Tech. Bull. No. 162, entitled Tests of Various Aliphatic Compounds as Fumigants, March 1929, p. 18. 

